Error 2147942405 When Digitally Signing PDFs in IE

Report · Nov 19, 2021

This happens everytime I try to digitally sign a document thorugh IE on my government PC. Any solutions on how I change SHA256 to SHA1 as most of these adobe forum post have suggested? If so could one provide step by step instructions on how to do this as I am not tech savy?

Report · Nov 22, 2021

Hi there

Hope you are doing well and sorry for the trouble. As described you are getting Error 2147942405 When Digitally Signing PDFs in IE

Please go through the help page https://helpx.adobe.com/acrobat/kb/key-does-not-exist-error-code-2148073485.html and see if that works for you.

Let us know if you experience any trouble and need more help.

Regards

Amal

Report · Nov 22, 2021

That doesnt show you how to make the change from SHA256 back to SHA1, it just instructs to do so. Like for example, where is this (aSignHash) registry key located? Can we start there? And please do not respond with "its in the registry"? Tell me where this is IN THE REGISTRY?

Report · Nov 23, 2021

Hi there

We are sorry to hear that. Please check with your signature device or driver manufacturer for an updated driver that may resolve this error.

Note: Changing the registry setting is not a recommended approach as this would set SHA1 as the default hashing algorithm for all signatures, which is considered deprecated industry wide.

Regards

Amal

Report · Nov 29, 2021

This did not work.

Report · Nov 30, 2021

Hi there

We are sorry to hear that. Would you mind sharing the version of the OS and the application you are using?

To check the version of the application go to Help > About Acrobat and make sure you hve the recent version 21.07.20099 installed. Go to Help > Check for updates and reboot the computer.

Is this a behavior with a particular PDF file or with all the PDFs? Please try with a different PDF file and check.

If its a file specific issue, please share the file with us for testing. https://helpx.adobe.com/document-cloud/help/sharing-pdfs.html

Also a small video recording of the issue would be very helpful.

Regards

Amal